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12 en | Product description VOT-320
DOC | V4.5 | 2010.09 Installation and Operating Manual Bosch Sicherheitssysteme GmbH
3.3 Overview of functions
Thermal IP camera
The thermal IP camera VOT-320 is a complete network video surveillance system inside a
weather-proof housing. It provides high sensitivity, uncooled long wave thermal images. Six
choices of lenses are available (both narrow and wide field of view) and frame rates of 8.33 or
30 Hz.
VOT-320 is designed to combine the benefits of thermal imaging with the well-proven Bosch
IVA features. Thus a unique product was created that offers early detection and display of
irregularities over large areas even with poor visibility or absolute darkness. Neither dense
smoke nor bad weather conditions as heavy fog or snow affect visibility. With a VOT-320 there
is no need for natural or artificial lighting of the area of interest.
The camera incorporates a network video server. Its primary function is to encode video and
control data for transmission over an IP network. With its H.264 encoding, it is ideally suited
for IP communication and for remote access to digital video recorder and IP systems. The use
of existing networks means that integration with CCTV systems or local networks can be
achieved quickly and easily. Video images from a single camera can be simultaneously
received on several receivers.
Outstanding image quality
The camera uses a Vanadium Oxide (VOx) focal plane array with an image resolution of
320 × 240 pixels that delivers outstanding image quality and sensitivity. The Bosch designed
digital video processing system optimally handles the thermal image format without
compromise. Temperature differences of 50 mK or less are made visible. Video processing
features include multiple automatic, dynamic image optimization algorithms, as well as
polarity control (white hot/black hot). Automatic flat-field correction (FFC) grants proper
calibration of the detector throughout the operation.
Receiver
Compatible H.264 enabled hardware decoders (for example the VIP XD) can be used as
receivers. Computers with decoding software such as Bosch Video Client or computers with
the Microsoft Internet Explorer Web browser can also be used as receivers.
Video encoding
The VOT-320 uses the H.264 compression standards. Thanks to efficient encoding, the data
rate remains low even with high image quality and can also be adapted to local conditions
within wide limits.
Tri-streaming
Tri-streaming allows the data stream to be encoded simultaneously according to three
different, individually customized profiles. This creates two full H.264 streams that can serve
different purposes and an additional M-JPEG stream.
Multicast
In suitably configured networks, the multicast function enables simultaneous real-time video
transmission to multiple receivers. The UDP and IGMP V2 protocols must be implemented on
the network for this function.
Encryption
The VOT-320 offers a variety of options for protection against unauthorized reading. Web
browser connections can be protected using HTTPS. You can protect the control channels via
the SSL encryption protocol. With an additional license, the user data itself can be encrypted.